Buildout-Constructed "site.py" Assumes Location of Eggs Directory

[Jeff Rush]

Function "addsitepackages" in parts/buildout/site.py assumes that the directory holding the setuptools and zc.buildout eggs are located off the project root directory. The code takes the path of the site.py file, go up three directories and appends "eggs/zc.buildout-..." to the paths.

This breaks buildouts that use the provided escape mechanism "eggs-directory = some_other_place", either in the main buildout.cfg or under ~/.buildout/defaults.

To duplicate, just add the following to your buildout.cfg, re-bootstrap it and run bin/buildout. That script will be unable to import zc.buildout.buildout to invoke the main() routine.

[buildout]
eggs-directory = /var/tmp/eggs

Oddly the bootstrap.py respects any setting in buildout.cfg and downloads the setuptools and zc.buildout eggs into the alternative directory - it's just buildout itself that doesn't look there afterward.

[RodrigoMoraes (rodrigo-moraes)]

This is a duplicate of https://bugs.launchpad.net/zc.buildout/+bug/680667